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手把手教你运用VB来创建ASP组件(5) 

技术开发2024-01-08 阅读()
5、 IsEof方法

  IsEof方法是用来判断是否还有更多的信息

其代码如下

Private Function IsEof() As Boolean

IsEof = RecordSetCD.EOF

End Function

6、 NextCD 方法

  NextCD方法的目的是返回当前的CD信息,并将记录集的指针向下移动,这可以通过MoveNext方法和IsEof配合使用来实现

Private Sub NextCD(Id As Variant, Name As Variant, Author As Variant, Price As Variant, Information As Variant)

On Error Resume Next

If IsEof = True Then

Err.Raise vbObject + 1, "CD Information", "End of cursor"

Exit Sub

End If

Id = RecordSetCD.Fields("CD_ID")

Name = RecordSetCD.Fields("CD_Name")

Author = RecordSetCD.Fields("CD_Author")

Price = RecordSetCD.Fields("CD_Price")

Information = RecordSetCD.Fields("CD_Information")

RecordSetCD.MoveNext

End Sub

  好,我们已经编写好了组件,把它们编译成CD.dll后,你最好把他们注册一下 方法是在DOS界面下,输入regsvr32 CD.dll 

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